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A. H. NEWTON.

FUEL MIXING DEVICE FOR INTERNAL COMBUSTION ENGINES;

APPLICATION FILED MAR. 1. 1916.

1 1 95,255. Patented Aug. 1916.

WITNESSES: INVENTOR omen.

ARTHUR H. NEWTON, OF NEW YORK, N. Y.

FUEIwMIXING DEVICE FOR INTERNAL-GOMBUSTION ENGINES.

To all whom it may concern..- I

Be it known that I, ARTHUR H. Nnwron, a citizen of the United States, residing at 173 lVest Eighty-third street, New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Fuel'MiXing Devices for Internal-Combustion Engines, of which the following is a specification.

This invention relates to fuel-mixing devices for internal combustion engines, particularly of the type designed for insertion within the intake-pipe of' the engine, and having an annular flange or collar held between the meeting-flanges of the carbureter and manifold. Attempts have been heretofore made to devise a mixer of this type having blades, stationary or rotatable, for imparting a whirling movement to the mixture of gasolene and air after it leaves the carbureter, screens of various sorts being sometimes employed to assist in the mixing of the fuel. Most of these, however, if not all, have been for one reason or another unsuccessful, and none of them so far as I know has attained sufficient success to Warrant adoption by any of the leading makers of automobiles, in which a device of this character is particularly useful.

The object of the present invention is to produce a mixer of .the aforementioned type, economical of manufacture and. yet highly eflicient; one that will be sufficiently substantial to withstand any back-firing and therefore protect the carbureter, and yet so constructed as to allow passage there through of the fuel-mixture with the least possible resistance; and one so designed as to insure complete and therefore uniform mixing of the air and gas before passing into the cylinders.

The invention is illustrated in the accompanying drawing, wherein Figure 1 is a side elevation of the mixer; Fig. 2 is a vertical sectional view cf the same, the rotatable vane and its sg le, however, being shown in elevation; 3 is a plan view; Fig. 4 is an elevri .on of the wire coil; and Fig. 5 is a plan of the parts as they appear with the cover and coil. removed.

As illustrated, the mixer comprises ing or shell 1, preferably of brass, having an annular upright portion 2, and an apertured base 3 constituting the bottom of the device and conveniently formed of cross Specification of Letters Patent.

Patented Aug. 22, 1916.

Application filed March 1, 191.8. Serial No. 81,507.

"balsa (see Fig. 5). The base 3 is provided readily removable therefrom, there is another casting forming a cap 7 attached to the ring 2 of the shell 1 in such manner, as by the fiush-threaded connection 8, that the external surface of the two-part casing thus formed is quite smooth. The cap is domeshaped and carries at its central portion a downwardly or inwardly extendlng bearing 9, much the same in form as the bearing 6. The portion 10 of the cap between the outer edge and the bearing 9 is formed with a series of rows of perforations varying in diameter from about one-eighth of an inch to about one-sixty-foi1rth of an inch, the largest apertures being along the outer edge of the cap.

A spindle 11 lying centrally within the casing has reduced. end-portions journaled for easy rotation in the bearings 6 and 9, and is provided midway its length with a propeller 12, the several blades of which extend outwardly to within a short distance of the shell. Within the casing or shell, and so formed as to lie loosely against the inner surface thereof, there is a wire coil 13, the height of which, when the parts are assembled, is substantially that of the inside of the shell. I

The use of the device will be apparent. The shell or casing is slid up into the intakepipe of the engine preferably where the carburetor-flange abuts the same, the flange 5 of the mixer being securely held between the meeting-flanges of the carbureter and the manifold. As the mixture of air and hydrocarbon passes into the shell of the mixer, it is divided by the spider 4 into several portions which, upon further forward movement impinge upon the blades of the propeller 12 and cause the latter to rotate quite rapidly in a well-known manner, the mixture becoming well chopped up and part thereof being thrown outward against the wire coil and there further broken up and mixed. Passing onward in the directhrough .the propeller in the so-called zone of quiescence, i. a, the zone immediately ysurrounding the hub. The increase in size of the outer perforations is permissible on account of the added interruption to the passage of the mixture due to the coil 13, and

also because of the increase in the slant of the openings as the outer edge is approached, the mixture at these points being required to deviate considerably "from the vertical in passing from the shell. The coil 13 not only assists in the mixing operation, as above described, but serves likewise, due perhaps to any movement it may receive fromthe impact of'the fuel in passing thereby, to keep the inner surface of the casing clean and free from any foreign accumulations whatsoever. After use, it has been observed that both the inner wall of the shell and the wire coil are clean and bright.

With the use of a device of this construction, a very thorough mixing of the air and gas is effected, in proper proportions: 3 parts air to 1 part gasolene, without materially impeding the flow to the cylinders, and a saving prove of considerable advantage in the elim-.

ination of this evil. Carbon deposits in the cylinders due to use of low-grade gasolene,

or faulty mixing, or accumulation of dust,

dirt, etc., will also be prevented or largely diminished.

The device is of few parts, easilyconstructed, assembled and dismantled, and the parts are replaceable.

I claim zv 1. A fuel-mixing device for internal combustion engines, comprising a shell having an annular upright portion for insertion in the intake-pipe of the engine and a flanged, apertured support forming the bottom of the device; a central bearing in said support; a perforated capfor said shell having a flush connection therewith; a central bearing in said cap; a rotatablespindle journaled at its ends in said bearings; blades on said spindle; and a wire coil Within the cap and shell and lying thereagainst.

2. A fuel-mixing device for internal combustion engines, comprising a shell having an annular upright portion for insertion in the'intake-pipe of the engine and a flanged, apertured support forming the'bottom of the device; a central bearing in said, support; a domeshaped cap for said shell hav ing a flush connection therewith and provided with rows of perforations decreasing in diameter from the outer edge of the cap to its center; a central bearing in said cap; a rotatable spindle journaled at its ends in said bearings; blades on said spindle; and a wire coil within the cap and shell and lying thereagainst.

3. A fuel-mixing device for internal combustion engines, comprising a casting having an annular upright portion for insertion in the intake-pipe of the engine, a flanged spider forming the bottom of the device,

and a central bearing on said spider; a sec- 0nd casting forming a cap for the device, having a flush, detachable connection with the first casting and provided with a central bearing; a rotatable spindle journaled at its ends in said bearings; blades on said spindle; and a wire coil within the castings and lying thereagainst when assembled.

In testimony whereof I aflix my signature in presence of two witnesses.

' ARTHUR H. NEWTON. Witnesses:

JAMES J. SIDLEY, F. B. HAUBERT. 

